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help > 2x3 Mixed Design ANOVA
Oct 10, 2018 02:10 PM | Ana Coelho
2x3 Mixed Design ANOVA
Hi Dr. Zalesky,
I would like to do a 2x3 mixed ANOVA analysis and I was hoping that you could confirm that my design matrix is correct.
So, I have two groups (good and bad cognitive performers) and they were evaluated at 3 timepoints. I want to evaluate the interaction group x time
My data is organized as follows:
good1-time1
good1-time2
good1-time3
good2-time1
good2-time2
good2-time3
...
bad1-time1
bad1-time2
bad1-time3
bad2-time1
bad2-time2
bad2-time3
...
The design matrix for an example with 4 subjects will be something like this:
1 0 1 0 1 0 0 0
0 1 0 1 1 0 0 0
0 0 0 0 1 0 0 0
1 0 1 0 0 1 0 0
0 1 0 1 0 1 0 0
0 0 0 0 0 1 0 0
1 0 -1 0 0 0 1 0
0 1 0 -1 0 0 1 0
0 0 0 0 0 0 1 0
1 0 -1 0 0 0 0 1
0 1 0 -1 0 0 0 1
0 0 0 0 0 0 0 1
where the first 2 columns model time. columns 3 and 4 model interaction and last 4 columns the subject means.
Is this design correct?
Thanks in advance!
Best regards,
Ana
I would like to do a 2x3 mixed ANOVA analysis and I was hoping that you could confirm that my design matrix is correct.
So, I have two groups (good and bad cognitive performers) and they were evaluated at 3 timepoints. I want to evaluate the interaction group x time
My data is organized as follows:
good1-time1
good1-time2
good1-time3
good2-time1
good2-time2
good2-time3
...
bad1-time1
bad1-time2
bad1-time3
bad2-time1
bad2-time2
bad2-time3
...
The design matrix for an example with 4 subjects will be something like this:
1 0 1 0 1 0 0 0
0 1 0 1 1 0 0 0
0 0 0 0 1 0 0 0
1 0 1 0 0 1 0 0
0 1 0 1 0 1 0 0
0 0 0 0 0 1 0 0
1 0 -1 0 0 0 1 0
0 1 0 -1 0 0 1 0
0 0 0 0 0 0 1 0
1 0 -1 0 0 0 0 1
0 1 0 -1 0 0 0 1
0 0 0 0 0 0 0 1
where the first 2 columns model time. columns 3 and 4 model interaction and last 4 columns the subject means.
Is this design correct?
Thanks in advance!
Best regards,
Ana
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Title | Author | Date |
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Ana Coelho | Oct 10, 2018 | |
Andrew Zalesky | Oct 10, 2018 | |
Ana Coelho | Oct 11, 2018 | |
Andrew Zalesky | Oct 12, 2018 | |
Ana Coelho | Oct 12, 2018 | |
Andrew Zalesky | Oct 15, 2018 | |
Ana Coelho | Oct 15, 2018 | |
Andrew Zalesky | Oct 16, 2018 | |
Ana Coelho | Oct 18, 2018 | |
Andrew Zalesky | Oct 19, 2018 | |
Ana Coelho | Mar 12, 2019 | |
Andrew Zalesky | Mar 13, 2019 | |
Ana Coelho | Mar 13, 2019 | |
Ana Coelho | Oct 19, 2018 | |
Ana Coelho | Oct 22, 2018 | |
Andrew Zalesky | Oct 22, 2018 | |
Ana Coelho | Oct 25, 2018 | |
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Andrew Zalesky | Oct 27, 2018 | |